Chinese translation for "四线制电话线路"

four wire telephone circuit
four-wire telephone circuit

Similar Words：

"四线征收通行费设施" Chinese translation, "四线制" Chinese translation, "四线制传输" Chinese translation, "四线制传输线" Chinese translation, "四线制的" Chinese translation, "四线制电路" Chinese translation, "四线制多路复用设备" Chinese translation, "四线制话频电话中继器" Chinese translation, "四线制交换" Chinese translation, "四线制交换中心" Chinese translation